Buggy code:
public class TransactionLogic { public static String renderAsHTML ( TransactionBean trans , TransactionRenderOpsBean ops ) { StringBuffer html = new StringBuffer ( ) ; html . append ( "<tr>" ) ; if ( ops . isCards ( ) ) html . append ( "<td<seq2seq4repair_space>valign=\"top\"<seq2seq4repair_space>width=\"75%\">" ) ; else html . append ( "<td>" ) ; if ( ( ops . isInputText ( ) ) && ( ( trans . getInputText ( ) ) != null ) ) { html . append ( "<span<seq2seq4repair_space>style=\"color:<seq2seq4repair_space>blue\">" ) ; if ( ( ( trans . getRequestType ( ) ) != null ) && ( trans . getRequestType ( ) . equals ( LAUNCH_REQUEST ) ) ) html . append ( "&lt;launch<seq2seq4repair_space>session&gt;" ) ; else if ( ( ( trans . getRequestType ( ) ) != null ) && ( trans . getRequestType ( ) . equals ( SESSION_ENDED_REQUEST ) ) ) html . append ( "&lt;session<seq2seq4repair_space>end&gt;" ) ; else html . append ( trans . getInputText ( ) ) ; html . append ( "<//span>" ) ; html . append ( "<br//>" ) ; } if ( ( ops . isIntents ( ) ) && ( ( trans . getInputMatch ( ) ) != null ) ) { html . append ( "<span<seq2seq4repair_space>style=\"color:<seq2seq4repair_space>blue\">" ) ; html . append ( trans . getInputMatch ( ) . toString ( ) ) ; html . append ( "<//span>" ) ; html . append ( "<br//>" ) ; } if ( ( ops . isOutputText ( ) ) && ( ( trans . getOutputText ( ) ) != null ) ) { html . append ( "<span<seq2seq4repair_space>style=\"color:<seq2seq4repair_space>green\">" ) ; html . append ( trans . getOutputText ( ) ) ; html . append ( "<//span>" ) ; html . append ( "<br//>" ) ; } <START_BUG> if ( ( ops . isReprompt ( ) ) && ( ( trans . getOutputData ( ) . getRepromptText ( ) ) != null ) ) { <END_BUG> html . append ( "<span<seq2seq4repair_space>style=\"color:<seq2seq4repair_space>darkgreen\">" ) ; html . append ( trans . getOutputData ( ) . getRepromptText ( ) ) ; html . append ( "<//span>" ) ; html . append ( "<br//>" ) ; } if ( ( ops . isErrors ( ) ) && ( ( trans . getError ( ) ) != null ) ) { html . append ( "<span<seq2seq4repair_space>style=\"color:<seq2seq4repair_space>red\">" ) ; html . append ( ( ( "<b>" + ( trans . getError ( ) . getLocalizedMessage ( ) ) ) + "<//b><br//>" ) ) ; for ( StackTraceElement elem : trans . getError ( ) . getStackTrace ( ) ) html . append ( ( ( "&nbsp;&nbsp;" + ( elem . toString ( ) ) ) + "<br//>" ) ) ; html . append ( "<//span>" ) ; html . append ( "<br//>" ) ; } if ( ops . isVerbose ( ) ) { Date d = new Date ( trans . getTransactionEnd ( ) ) ; long e = ( trans . getTransactionEnd ( ) ) - ( trans . getTransactionStart ( ) ) ; html . append ( ( ( ( ( "<small>" + d ) + ",<seq2seq4repair_space>" ) + e ) + "ms<//small><seq2seq4repair_space>" ) ) ; if ( ( trans . getOutputData ( ) . getOutputSpeechType ( ) ) != null ) html . append ( ( ( "<small>output<seq2seq4repair_space>type=" + ( trans . getOutputData ( ) . getOutputSpeechType ( ) ) ) + "<//small><seq2seq4repair_space>" ) ) ; if ( ( trans . getOutputData ( ) . getRepromptType ( ) ) != null ) html . append ( ( ( "<small>reprompt<seq2seq4repair_space>type=" + ( trans . getOutputData ( ) . getRepromptType ( ) ) ) + "<//small><seq2seq4repair_space>" ) ) ; } html . append ( "<//td>" ) ; if ( ops . isCards ( ) ) { html . append ( "<td<seq2seq4repair_space>valign=\"top\"<seq2seq4repair_space>width=\"25%\">" ) ; if ( ( trans . getOutputData ( ) ) != null ) { if ( ( trans . getOutputData ( ) . getCardTitle ( ) ) != null ) html . append ( ( ( "<b>" + ( trans . getOutputData ( ) . getCardTitle ( ) ) ) + "<//b><br//>" ) ) ; if ( ( trans . getOutputData ( ) . getCardContent ( ) ) != null ) html . append ( ( ( "<i>" + ( trans . getOutputData ( ) . getCardContent ( ) ) ) + "<//i><br//>" ) ) ; if ( ( ops . isVerbose ( ) ) && ( ( trans . getOutputData ( ) . getCardType ( ) ) != null ) ) html . append ( ( ( "<small>type=" + ( trans . getOutputData ( ) . getCardType ( ) ) ) + "<//small><br//>" ) ) ; } html . append ( "<//td>" ) ; } html . append ( "<//tr>" ) ; return html . toString ( ) ; } public static String renderAsHTML ( List < TransactionBean > transs , TransactionRenderOpsBean ops ) { } }

Fix:
if ( ( ( ops . isReprompt ( ) ) && ( ( trans . getOutputData ( ) ) != null ) ) && ( ( trans . getOutputData ( ) . getRepromptText ( ) ) != null ) ) {